MINIMUM BANDWIDTH RECOVERY ENCODING METHOD BASED ON CLUSTERED DISPERSION STORAGE SYSTEM IN SERVER COMMUNICATING WITH A PLURALITY OF CLUSTERES COMPRISING A PLURALITY OF NODES AMD SERVER COMMUNICATING WITH THE PLURALITY OF CLUSTERS COMPRISING THE PLURLIATY OF THE NODES FOR THE MINIMUM BANDWIDTH RECOVERY ENCODING BASED ON THE CLUSTERED DISPERSION STORAGE SYSTEM

摘要

The present invention relates to a minimum bandwidth recovery encoding method based on a clustered distributed storage system in a server communicating with a plurality of clusters composed of nodes. According to an embodiment of the present invention, the minimum bandwidth recovery encoding method may comprise: a generation step of generating a coded symbol by encoding a data symbol functionalized with data; an arrangement step of disposing the generated coded symbol in all normal nodes included in a plurality of clusters; when at least one or each of the normal nodes included in any one of the plurality of clusters is lost and changed into a lost node, a reception control step of controlling to receive recovery information only from another normal node included in the one cluster; and a recovery control step of controlling to recover the lost node based on the recovery information.